Wood-sawing machine.



E. GRAHAM.

WOOD SAWING MACHINE.

A-PPLIOATION FILED JAN.11, 1911.

Mouwq Patented June 6, 1911.

Edward 6106mm 4 TEE-L.

ZZZXM. 2% 2* w EDWARD GRAHAM, 0F LEBANON, TENNESSEE, ASSIG-NOR TO GULFRED CEDAR CO., INC., OF LEBANON, TENNESSEE.

WOOD-SAWING MACHINE.

aaacao.

To all whom it may concern:

Be it known that I, EDWARD GRAHAM, a citizen of the United States,residing at Lebanon, in the county of \Vilson and State of Tennessee,have invented certain new and useful Improvements in lVood-SawingMachines, of which the following is a specification, reference being hadto the accompanying drawings.

This invention relates to improvements in wood sawing machines and moreparticularly to machines of this character commonly known as edgingmachines, the invention having for its primary object the provision ofmeans whereby the boards or slats may be trimmed or edged withoutunnecessarily reducing the width of the same.

Another object of the invention is to provide very'simple and eflicientmeans whereby the work may be adjusted in the machine and rigidly heldin place in the movement of the carrier.

Still another object of the invention is to provide means for edging ortrimming a large number of pieces of material at a time, and toeliminate waste of the material.

With the above and other objects in view, the invention consists of thenovel features of construction, combination and arrangement of partshereinafter fully described and claimed, and illustrated in theaccompanying drawings, in which- Figure 1 is a top plan view of amachine for the purpose specified to which my invention is applied; Fig.2 is a sect-ion taken on the line 2-2 of Fig. 1; and Fig. 3 is a detailperspective view of one of the adjusting members.

Referring in detail to the drawing 5 designates the frame of the machineupon which the carrier 6 is mounted. This carrier may be moved by meansof any suitable mechanism now well known in the art and the means forsecuring the work in the carrier may also consist of any approvedarrangement of parts whereby the work is rigidly held in position. Inthe drawing I have illustrated a stationary longitudinal work engagingbar 7 which is formed upon the upper edge of the carrier. A similar bar8 is mounted upon the opposite side of the carrier and is adjustablethereon. The means for adjusting this latter bar is not illustrated indetail in the drawing but suitable means are employed to move this barSpecification of Letters Patent.

Application filed January 11, 1911.

Patented June 6, 1911.

Serial No. 602,058.

transversely upon the carrier to engage the inner edge thereof with thework after the work has been placed between the opposed edges of thebars 7 and 8. The inner edges of these bars are beveled as clearlyshownlIl Fig. 2 so that they will bite into and rigidly retain the work inposition in the movement of the carrier.

A circular saw 9 is mounted upon one end of the machine frame 5 and isrotated in any suitable manner. The carrier in which the work isarranged is adapted to move longitudinally upon the frame beneath thissaw, said saw being disposed slightly above the surface of the workholding bars 7 and 8. The work is adapted to be suitably adjustedbetween the clamping bars of the carrier so as to cut off exactly theproper amount of material and eliminate waste. This means consists ofthe adjusting members 10 which are similar in all respects and aremounted in suitable bearings arranged upon opposite ends of the carrier.These adjusting members are in the form of cylinders which are arrangedbetween the opposite sides of the carrier and beneath the work clampingbars. A plurality of longitudinally extending ribs 11 are rigidly fixedin each of the cylinders and extend radially therefrom. These ribs asclearly shown in Fig. 2 vary in width upon each of the cylinders. Uponthe bearing stud of each of the cylinders at one end thereof, theintermeshing gears 12 are rigidly secured. A hand wheel 13 is also fixedupon one of the cylinder bearing studs by means of which said cylinderis adapted to be rotated. It will be obvious that the other of thecylinders will be rotated in the opposite direction through theengagement of the gears 12. The ribs 11 which are disposed uppermost arealways of the same length, said ribs being equally spaced on each 'ofthe cylinders and the cylinders rotated at the same speed.

In the operaion of my improved attachment, the work which is to beoperated upon is arranged between the clamping bars 7 and 8, and thehand wheel is turned to rotate the cylinders and move the ribs thereoninto engagement with the under side of the work. As the ribs are ofdifferent widths and extend to different distances radially from thesurfaces of the cylinders, it will be obvious that the disposition ofthe work above the plane of the clamping bars 8 may be easily andquickly regulated. When the proper position of the work between theclamping bars has been obtained so that the saw 9 in the movement of thecarrier, will cut ofi' only so much as is absolutely necessary to removethe defects, the clamping bar 8 is then moved by the operation of theproper mechanism into engagement with the end of the work so that it isrigidly held in position in the carrier.

In the above manner, the work may be quickly trimmed or edged to removeall defects in the same. It is desirable that the pieces after beingtrimmed be of great a width as possible. It will be obvious that ifdesired a greater number of longitudinal ribs 11 than is shown in thedrawing may be employed. These ribs extend the entire length of therollers and bear upon the under side of the work adjacent to theopposite ends thereof. The machine is capable of adjusting a number ofpieces simultaneously, or if desired a single piece may also be operatedupon.

From the foregoing it is believed that the construction and operation ofmy improved attachment will be readily understood.

' The device is extremely simple, may be easily operated and iscomparatively inexpensive in construction.

lVhile I have shown means for operating the rollers manually, it will beunderstood that suitable connections may be made with the saw operatingmechanism whereby these rollers may be mechanically operated if desired.

The device is also susceptible of a great many other minor modificationswithout de parting from the essential feature or sacrificing any of theadvantages of the invention.

Having thus described the invention what is claimed is l. Thecombination with a work support and clamping means carried thereby, atool mounted above said clamping means, of a pair of rotatable workadjusting members mounted in the work support, means for rotating saidmembers, and means carried by each of said members to simultaneouslyengage the work to adjust the same with relation to the tool andmaintain the work in a plane parallel to the transverse axes of saidmembers.

2. The combination with a movable Work support and work holding meanscarried thereby, a tool mounted above said holding means, of a pair ofcylinders rotatably mounted in the work support, means for rotating thecylinders in opposite directions, and means carried by each of thecylinders to simultaneously engage the work and adjust the same withrelation to the tool and maintain the work in a plane parallel to thetransverse axes of the cylinders.

3. The combinationwith a movable work support and clamping means carriedthereby, a tool mounted above said clamping means, of a pair ofcylinders rotatably mounted in the work support, means for rotating saidcylinders, and a plurality of longitudinal ribs extending radially fromthe periphery of each cylinder, the corresponding ribs of said cylindersbeing adapted to simultaneously engage the work as the cylinders arerotated and adjust the work with relation to the tool to maintain thesame in a plane parallel to the transverse axes of the cylinders.

4.. The combination with a movable work support and clamping meanscarried thereby, a tool mounted above said support, of a pair ofcylinders rotatably mounted in the support beneath said clamping means,means for rotating said cylinders in opposite directions, and aplurality of longitudinal ribs formed on each of said cylinders, theribs on each cylinder being of different widths, the corresponding ribsof said cylinders being adapted for simultaneous engagement with thework to adjust the same with relation to the tool and maintain said workin a plane parallel to the transverse axes of the cylinders.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

EDWARD GRAHAM.

WVitnesses:

J. C. SCALE, J QHN H. MINNFORD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

